Abstract – This paper discusses FPGA implementation of finite impulse response (FIR) filters using their application in Digital Down-Converters (DDCs) for software radio and in (Electrical Resistance Tomography) ERT The implementation is based on distributed arithmetic (DA) which substitute multiply and accumulate operations with a series of look-up-table (LUT) accesses. Distributed arithmetic ...

This paper provide the principles of Modified Distributed Arithmetic, and introduce it into the FIR filters design, and then presents a 31-order FIR low-pass filter using Modified Distributed Arithmetic, which save considerable MAC blocks to decrease the circuit scale, meanwhile, divided LUT method is used to decrease the required memory units and pipeline structure is also used to increase the...

This paper presents an improved CLUT (Color Look Up Table) color classification method for robot soccer. Combined color space was employed to increase the ability to segment the similar colors. Additionally, the linear classifiers made it more convenient to set up the table, and thus the experience of operators would not influence the accuracy of setting up the table. The results of the experim...

Several architectures have been reported in the literature for memory-based implementation of DSP algorithms involving orthogonal transforms and digital filters. A common way of implementing constant multiplication is by a series of shift and adds operations. If the multiplier is represented in Canonical Signed Digit (CSD) form, then the number of additions (or subtractions) used will be a mini...

Screening is a low complexity halftoning algorithm that has been widely used in many applications. However, screen design requires that the stacking property be obeyed. This constraint limits the texture quality at each gray level. We present a look-up-table based halftoning algorithm for which the stacking constraint is not necessarily satisfied; but the binary patterns for individual levels a...

Table look-up is the most time-consuming part of many SAS programs. Base SAS offers a rich collection of built-in searching techniques. Merging, SQL joins, formats, SAS indexes all serve the purpose of locating relevant data. For custom programming, SAS offers arrays, whose direct addressability lends itself to implementing just about any searching algorithm. Array-based lookup is not a ready-t...

Dural arteriovenous fistulae are the cause of various somatic diseases. For their analysis DSA is used in medical practice. However, the injection of contrast dye into the vertebral segmental arteries is a time–consuming and highly difficult procedure. Aiming at a reduction of the number of injections required for the detection and exact localization of the pathology, we introduce a new approac...

Abstract: In this paper, a highly area-efficient multiplier-less FIR filter is presented. Distributed Arithmetic (DA) has been used to implement a bit-serial scheme of a general asymmetric version of an FIR filter, taking optimal advantage of the 3-input LUT-based structure of FPGAs. The implementation of FIR filters on FPGA based on traditional arithmetic method costs considerable hardware res...

This paper proposes a computationally-efficient electromagnetic (EM)-computational fluid dynamics (CFD) coupling approach for water-cooled Interior Permanent Magnet (IPM) motor. The numerical simulation of multiple fluids and their interaction with solid parts can be challenging. proposed relies on the heat transfer coefficient (HTC) decomposition different fluids/coolants inside machine to gen...

polarimetric synthetic aperture radar (pol.-sar) allows us to implement the recognition and classification of radar targets. this article investigates the arrangement of scatterers by sar data and proposes a new look-up table of region (ltr). this look-up table is based on the combination of (entropy h/anisotropy a) and (anisotropy a/scattering mechanism α), which has not been reported up now. ...